Furnace-forge for welding and forging iron



(NoMo'deI.) 8 A. HUIDEKOPER, MAMBOURG, U. HOUZE 8E D. S. DOGKSTADER. IUENIGE DODGE EDE' WELDING AND EDEGING IDDN, STEEL, AND OTEEE METALLIC BODIES.

No. 347,875. Patented Aug. 24, 1886.

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UNITED STATES PATENT UFFICE.

ARTHUR C. HUIDEKOPER, LOPOLD MAMBOURG, ULGTS HOUZE, AND DENNIS S. DOCKSTADER, OF MEADVILLE, PENNSYLVANIA.

FURNACE-FORGE FOR WELDING AND FORGING IRON, STEEL, AND OTHER METALLIC BODIES.

SPECIFICATION forming part of Letters Patent No. 347,875, dated August 24. 1886.

Application lili-d July 23,1886. Serial No. 209,895. (No model.)

To all whom it may concern:

Beit knowu that we, ARTHUR C. HUIDE- KOPER, LoPoLD MAMBOURG, ULGIs HoUzE, and DENNIS S. DocKsTADER, all residents of Meadville,in the county ofCrawfoi-d and State of Pennsylvania, (ARTHUR C. HUIDEKOPER and DENNIS S. DocKsTADER being citizens of the United States, but LoPoLD MAMBOURG and ULGIs HoUzE. formersubjects of the King ro of Belgium, have both made oath of theirintentions to become citizens of the United States,) have jointly invented a Furnace-Forge for Welding and Forging Iron, Steel, and other Metallic Bodies by the Use of Natural Gas as i5 Fuel, of which the following is a specification.

Our object is to combine heated air with gas in an apparatus so constructed that a portion of the gas is first burned in contact with a mass of broken fire-clay bricks,while the main supzo ply of gas, under a high pressure, previously mixed with air,is forced over the mass of heated fire-brick in the combustion-chamber,the force of the gas driving the products of combustion through and beyond the bricks to a working- 2 5 chamber,where they are used to heat or melt metallic bodies. We attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a longitudinal'central sectional View of our furnace. Fig. 2 is a rear View of the combustion and air-heatlng chambers.

Similar letters refer to similar parts throughout the several views.

XVe build our furnacein three compartments, 3 5 the central chamberor compartment being the combustion-chamber, and those at the sides and top ofthe combustion-chamber are for the purpose of heating the main air-supply before it enters the upper part of the central combustion-chamber.

All the walls, iioors, and covers of the furnace are built offlre-clay brick,and each compartment is preferably three times longer than the width, and so arranged that arow of bricks will span each chamber as a cover.

Over the air-heating and gas-combustion chambers we form a cover some two inches above the top of the lower chamber. The chamber thus formed is not divided by parti- 50 tions, but as statcd,it formsthe upper surface of the combustion and lower or side airheating chambers. There are openings from the side chambers into this upper chamber-,so that the air can be lnore highly heated after passing through the side chambers. 5J

To compel the air to traverse' the heated Surface of the upper chamber we project a pipe, E, into this chamber,to take the air from the opposite end from which it enters.

The arrows, Fig. l, show the direction and 6o path of the air from where it first enters the air-heating chambers at the opening Q below the hearth or forge at the bottom of the wall O till finally it is drawn through pipe E by the gas-blast from pipe F, and is discharged into the combustion-chamber over the mass of highly-heated tire-brick resting on the gratebars J J.

As heretofore stated, Fig. l is a longitudinal central section of our furnace,in which the 7o letter A represents the top or cover of the upper air-heating chamber B, the cover of the combustion-chamber C, the front Wall of the combustion and air-heating chambers; D,the rear wall of the same. E is an air-pipe for 7b the introduction of air to the upper air-heating chamber. Fis a gas-main leading from a gas-well or other source of supply.

The arrows in Fig. l show the path of the air through the heating passages or compart- 8O ments. l is a gas'pipe leading from the main pipe F. G is a perforated pipe or burner. J J are grate-bars, on which is shown the layer of broken brick.

4In the path of the products of combustion, y85 as they pass from the combustionchamber,we locate the furnace-hearth or working-chamber.

K represents the floor of the forge; L, the chimney of the same. M is a sectional view of the top or cover of the forge. N shows far- 99 ther side of forge provided with the opening O, through which the materials to be 'heated are introduced. P is a loop in the cap or cover, for the purpose of raising it with a lever or pulley, as desired. 9

Then the bars are to be heated their entire length, we make a proportional distance between the combustionchambers or furnace and the chimney, and, if necessary, feed the bars through the rear wall ofthe chimney.

Fig. 2 is a rear View of the combustionchamber, showing iu dotted lines the side air- IOO h( ating chambers,R R,and the upper air-heating chamber, S, and the central combustion` chamber and grate.

In order to give greater intensity to the heat in the working-ehamber,we place the burner Gjust over the grate-bars J J,in the midst of the broken iireclay bricks. The supply of gas being turned on through thegasmain F, the gas at the burner G is lighted, and the air is su pplied thereto by ai r-passages which open into the combustion-chamber below the gratebars J J. When the broken tire-clay bricks surrounding the burner Gare highly heated, by means ofthe combustion of the gas in contact therewith, as described, we turn on the main supply of gas through the pipe I, and, owing to the pressure of the g.tswithout the use of fans, blowers, or other devices ordina.-y

rily employed in snpplyingairto gasfurnaces, we draw the supply ot' air required for the complete combustion of the gas through the sideandtopairheatingchambers. Thehighlyheated condition of the broken bricks in the combustiouchamber causes the air and gas entering from the pipe E to be immediately inflamed, andthe two are thoroughly commingled, and the gas consumed partly in the combustion-chamber. v

The point of complete combustion and of the greatest intensity of heat of our furnace is formed in the workingchamber, and for this reason our apparatus described is admirably adapted for heating metals, and like purposes of the industrial arts.

The construction shown is simple, and the results attained prove that the apparatus is more effective in attaining higher temperatures and a more complete combustion of gas than the apparatus heretofore employed for such purposes.

Having fully described our invention, what we claim as our improvement, and desire to l secure by Letters Patent, is

1. The combination of the central combustion-chamber provided with a grate covered with broken fire-bricks, of the gas-burner located near the grate, of the side air-heating chambers and the upper ai r-heating chambers, and the air-pipe and gas-pipe opening into the upper part of the combustionch'amber, as described.

2. The combination ofthe comlmstou-chamber, the air-heating chambers located on the side of the combustion-chambers, the upper air-heating chamber, the air-pipe located in said upper chamber, and the gas-jet opening into said air-pipe, and the forge or workingchamber, as described.

ARTHUR C. HUIDEKOPER. LEOPOLD MAMBOURG. ULGIS HOUZE.

DENNIS S. DOCKSTADER.

Witnesses:

JOHN O. MCCLINTOCK, J. L. WILLIAMSON. 

